Depress-to-actuate pneumatically-operated double-walled container

Abstract

A depress-to-actuate pneumatically-operated double-walled container includes a double-walled contained accommodated in an outer casing, both being secured to a dispenser cap. The double-walled container includes an outer layer accommodating therein a flexible inner layer forming a collapsible bag in which a fluid product is contained. When the dispenser cap is depressed and actuated, the fluid produce is gradually pumped out of the container, which induces a negative pressure inside the inner layer by which the inner layer is collapsed toward the dispenser cap to completely expel the fluid produce out of the container with repeated actuation of the dispenser cap.

1 . A depress-to-actuate pneumatically-operated double-walled container comprising a dispenser cap, a double-walled container, and an outer casing, wherein the improvements comprise:
 the cap having a wall having an internal surface forming an internal thread engaging a corresponding thread formed in the outer casing to secure the cap and the outer casing together, the cap also having another thread that engages a corresponding thread formed in an open end of an outer layer of the double-walled container to secure the cap and the double-walled container together;   the double-walled container made of flexible materials, comprising a flexible inner layer forming a collapsible interior space and a flexible outer layer forming the open end attached to a suction assembly of the cap, the outer layer having an inner circumferential surface to which an open end flange of the inner layer is secured so that the interior space of inner layer extends to a portion of the outer layer for receiving and containing a fluid product therein, the fluid product being pumpable out of the container through the suction assembly by pumping operation actuated by the dispenser cap; and   the outer casing secured to the cap and defining an interior space for accommodating the double-walled container therein.   
   
   
       2 . The depress-to-actuate pneumatically-operated double-walled container as claimed in  claim 1 , wherein said another thread of the cap comprises an external thread that engages an inner thread formed in the open end of the outer layer of the double-walled container. 
   
   
       3 . The depress-to-actuate pneumatically-operated double-walled container as claimed in  claim 1 , wherein said another thread of the cap comprises an internal thread that engages an external thread formed on the open end of the outer layer of the double-walled container. 
   
   
       4 . The depress-to-actuate pneumatically-operated double-walled container as claimed in  claim 1 , wherein the inner layer of the double-walled container comprises a top open and bottom closed bag that is received in a lower portion of the outer layer so that the bag and an upper portion of the outer layer form the interior space for containing the fluid product. 
   
   
       5 . The depress-to-actuate pneumatically-operated double-walled container as claimed in  claim 1 , wherein the outer layer is shapeable.